Math, asked by gv95327, 7 months ago

fx=x3-1 find x if fx 215

Answers

Answered by salsa7

0

Answer:

644

Step-by-step explanation:

fx=215

f=215×3-1

f=645-1

f=644

Answered by akshaya2727

1

Answer:

X=6

Step-by-step explanation:

fx=x3-1

fx=215

215=x3-1

When - 1 comes to LHS it becomes +1

So 216=x3

LCM of 216 is 2.2.2.3.3.3

So it can also write as 63( 6 cube)

Then x =6

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